The FMCP1021 from Fairview Microwave is a Dual Directional Coupler with Coupling 50 dB, Coupling Variation ± 0.5 dB, Frequency 80 MHz to 1 GHz, Average Power 200 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for FMCP1021 can be seen below.